1555260021

素因数分解:

$3^5\times 7^1\times {\mathrm{914321}}^1$

素因数の和:914343

約数の個数: 24

約数和(自身を含む): 2662505664

約数和(自身を除く): 1107245643

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 914321, 2742963, 6400247, 8228889, 19200741, 24686667, 57602223, 74060001, 172806669, 222180003, 518420007, 1555260021]

約数ペア:

[(1, 1555260021), (3, 518420007), (7, 222180003), (9, 172806669), (21, 74060001), (27, 57602223), (63, 24686667), (81, 19200741), (189, 8228889), (243, 6400247), (567, 2742963), (1701, 914321)]